Next, analysis of NFIB mRNA expression levels from METABRIC (Fig 6C) (Curtis et al, 2012) and TCGA (Koboldt et al,2012) (Appendix Fig S7B) confirmed that NFIB expression is elevated in basal‐like breast cancer, according to PAM50 classification, and in iC10 by integrated cluster classification (Dawson et al,2013; Mukherjee et al2018). Here, NFIB is linked to breast cancer.